Chiral Cadmium(II) Metal–Organic Framework from an Achiral Ligand by Spontaneous Resolution: An Efficient Heterogeneous Catalyst for the Strecker Reaction of Ketones
作者:Ashish Verma、Kapil Tomar、Parimal K. Bharadwaj
DOI:10.1021/acs.inorgchem.7b01915
日期:2017.11.20
A thermally stable cadmium-based chiral metal–organic framework (MOF), [Cd2(L)(H2O)(DMF)]·3DMF·2H2O}n (1; DMF = N,N-dimethylformamide), has been synthesized from an achiral ligand by spontaneous resolution. The MOF features 1D open channels with a large density of active metal sites and has a 3,6-c binodal net with a rare sit 3,6-conn topology. The metal-bound water and DMF solvents could be easily
热稳定的基于镉的手性金属有机骨架(MOF),[Cd 2(L)(H 2 O)(DMF)]·3DMF·2H 2 O} n(1 ; DMF = N,N-二甲基甲酰胺)通过自发拆分由非手性配体合成。MOF具有一维开放通道,其中具有大量的活性金属位点,并具有一个3,6-c二面体网,并具有罕见的3,6-conn拓扑。活化时,结合金属的水和DMF溶剂可以容易地与晶格中的客体分子一起除去,以提供去溶剂化的骨架1'。它表现出微孔性质,通过气体吸收测量得到证实,二氧化碳吸收量为43.2 cm在273 K下3 g –1。骨架中的开放金属位点使其成为Strecker反应中出色的非均相催化剂,用于在室温下以无溶剂状态合成α-氨基腈,具有优异的转化率。